feat:增加打印日hi

mysql/mysql.go

@@ -299,12 +299,14 @@ func (m *Mysql) Select(bath int, f func(l *[]map[string]interface{}) bool, tx *s
 			stmtOut, err = tx.Prepare(q)
 		}
 		if err != nil {
+			log.Println(err)
 			return nil
 		}
 		defer stmtOut.Close()
 		rows, err = stmtOut.Query(args...)
 	}
 	if err != nil {
+		log.Println(err)
 		return nil
 	}
 	if rows != nil {
@@ -312,6 +314,7 @@ func (m *Mysql) Select(bath int, f func(l *[]map[string]interface{}) bool, tx *s
 	}
 	columns, err := rows.Columns()
 	if err != nil {
+		log.Println(err)
 		return nil
 	}
 	list := []map[string]interface{}{}